Home / 286,679.39-395,621.94-157,623.45

Finding the Fourth Proportional to 286,679.39, 395,621.94 and 157,623.45

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Solution

The fourth proportional to 286,679.39, 395,621.94 and 157,623.45 is: 217,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,679.39 : 395,621.94 = 157,623.45 : x
  2. Step 2: Convert to fraction form
    286,679.39/395,621.94 = 157,623.45/x
  3. Step 3: Cross multiply
    286,679.39x = 395,621.94 × 157,623.45
  4. Step 4: Simplify right side
    286,679.39x = 62,359,295,078.49
  5. Step 5: Solve for x
    x = 62,359,295,078.49/286,679.39
  6. Step 6: Final answer
    x = 217,522.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.